IFRS Allows Companies to Revalue Plant Assets to Fair Value

IFRS allows companies to revalue plant assets to fair value. Which of the following statements is correct regarding revaluation?

A) At the time a company purchases an asset it must decide whether to follow revaluation procedures for the asset; once the election is made, it must be followed for the remainder of the asset's useful life.
B) Assets that are experiencing rapid price changes must be revalued quarterly, other assets can be revalued on an annual basis.
C) The journal entry to record a revaluation when the asset's price has increased includes a credit to the account revaluation surplus.
D) All of these answer choices are correct.